871561876 has 12 divisors (see below), whose sum is σ = 1529391808. Its totient is φ = 434592792.

The previous prime is 871561837. The next prime is 871561907. The reversal of 871561876 is 678165178.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 295386 + ... + 298321.

Almost surely, 2^871561876 is an apocalyptic number.

It is an amenable number.

871561876 is a deficient number, since it is larger than the sum of its proper divisors (657829932).

871561876 is a wasteful number, since it uses less digits than its factorization.

871561876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594078 (or 594076 counting only the distinct ones).

The product of its digits is 564480, while the sum is 49.

The square root of 871561876 is about 29522.2268130302. The cubic root of 871561876 is about 955.2112051715.

The spelling of 871561876 in words is "eight hundred seventy-one million, five hundred sixty-one thousand, eight hundred seventy-six".